End seal for wood rolls



C. C. HARRIS Filed April 2, 1924 [Wmfor Car/ C 170/;

.5) lf'drnay:

Patented Nov. 25, 1924.

' UNITED STATES.

PATENT 1 OFFICE.

CARL C. HARRIS, OF ORANGE, MASSACHUSETTS, ASSIGNOR TO RODNEY HUNT MA- CHINE COMPANY, OI ORANGE, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETTS.

END snap non woon norms Application filed'Api-il 2,

Be it known that I, CARL C. 'HARRIs, a

citizen of the United States, residing at Orange, in the county of Franklin and State of Massachusetts, have invented .a new and useful End Seal for Wood Rolls, of which the following is a specification.

invention relates to the sealing of the end of a wooden roll for use in textile and paper machinery and the like where it will be subjected to water and sometimes other liquids.

The principal object of the invention is to provide a simple and convenient seal by which the gudgeon rings and wedges will be held securely in place and will not become loose and weaken the end of the roll, and which-will permanently protect the roll from the entrance of water, chemicals and moisture and will therefore prolong the life of the wooden roll very materially.

The invention is particularly applicable to those wooden rolls which have a comosition seal between the wood and shaft ecause it will prevent the contact of moisture with the composition. Other objects and advantages of the invention will appear hereinafter.

Reference is to be had to the accompanying drawings, in whichig. 1 is a longitudinal central sectional view of one end of a wooden roll constructed in accordance with this invention Fig. 2 is an end view thereof with a part of it in section on the line 22 of Fig. 1,"

and

Fig. 3 is an enlarged detail view.

, I have shown the invention as applied to a wooden roll 10 made of a log. bored through the center and provided with a central space. The shaft 11 is smaller-than this central hole so that when it is insertedthere is considerable clearance, usually as much as a quarter of an inch, surroundin the shaft. At one end wooden wedges are riven in to seal the roll and then a seal 12'is applied entirely surrounding the shaft and extending throughout the bored portion of the roll. The sealing compound has the characteristics of making a very strong joint between the shaft and the center of the log or roll. After the compound is applied .the shaft with the log thereon is mounted in a lathe and the bark or rough surface turned oi, the circumference turned down to the 1924. Serial No. 703,828.-

desired diameter, and the ends faced down to the shaft. After this, special cutting toolsare provided to cut out spaces at the two ends, as indicated in Fig. 1.

Then a gudgeon 13 is cut in place, keyed, by the key 14: to the shaft. One of these gudgeons is, of course, supplied at each end. These gudgeons may be of any desired character and are shown as having wings 15 extending outwardly between which are driven in wood or metal wedges 16 to expand or swell the wood between the wings 15 of the gudgeon and insure a tight fit. The usual wrought iron ring 18 is driven in or shrunk over the rings 15 of the gudgeon. In some cases the ring is put in before the gudgeon. As so far described, the construction is old. v

With a gudgeon driven in i n the old style, water and moisture would eventually get inside and back of the gudgeon and come into contact with the seal -12 when used. This compound is likely to be decomposed when subjected to moisture and the shaft is rusted. A dirty mixture is produced which oozes out at the end of the roll and is likely to cause damage in the machinery. In any case the entrance of moisture is undesirable.

Now I cast an expanding sulphur compound at 17 in the rear between the rear surface of the gudgeon and ring and the adjacent seal 12. This effectively seals all these parts. Now. I pack the spacebetween the surface of the ring 18 and the adjacent surface of the wood with a ring 24 of. asbestos composition. This is tov protect the seal 17 against being melted and disintegrated by the application of the seal cap 19 which will now be described.

This seal cap is formed by casting a body or molten soft metal composition or alloy over or around the end face of the roll so.

as to completely cover the gudgeon and the end of the roll and lock itin place. An alloy of lead and antimony can be used. For this purposethe roll is originally provided with a dove-tailed groove '20 extending around it into which the composition will flow when it is poured. It is to prevent any of it etting 1nto contact with the sulphur that the packing ring 24 is used. This is driven in tightly between the circumference of the ring 18 and the wood and entirely fills the space. The seal 19 can formedby turning the roll up on end and munng itm the space and letting its outer surface he formed in the natural way by why or a mold can be placed over the en of the roll to receive the lead. After the metal is an attractive workman-like appearance.

The additional sulphur seal 17 is a very important feature for some classes of rolls.

The metal seal, however, is the particular feature. This not only protects the shaft and the end surfaces of the wooden roll against the entrance of water or other liquids but it also protects the inner'seal against contamination and disintegration. The roll is thus sealed at both ends so that its durability is greatly-increased.

Although I have illustrated and described only a single form of the invention and shown it as applied to a common roll of a single kind, I. am aware of, the fact that the invention can be modified by any person skilled in the art, and that it can be applied to wooden rolls ofvery difi'erenttypes with out departing from the scope of the inven-" tion as expressed'in the claims.

Therefore, I do not wish to be limited in these respects but what I do claim is 1. As an article of manufacture, a wooden roll having 'a shaft therein with a seal of expanding compound around the shaft and in intimate contact with the interior of the roll and shaft and provided with a gudgeon on the end of the shaft, the surfaces of the gudgeon at the rear and the -adjacent surfaces of the roll being sealed by the molten expanding compound, a packing ring around the gudgeon and sealing the outer surfaces ,roll having a shaft projecting from the end thereof, a gudgeon fixed to the shaft, the roll having a recess in which the gudgeon is located, a compound poured into the roll behind the gudgeon filling the spaces therebetween, packing extending over the surface of the compound and sealing it, and a layer of metal applied in amolten state to the end of the roll and covering the end of the gudgeon to seal the same against the en trance of water and moisture.

3. As an article of manufacture, a wooden roll having a recess in the end for a gudgeon, a shaft extending from the roll, a gudgeon on the shaft in said recess, and a layer of metal applied in a molten state covering the outer or exposed surface of the gudgeon and anchored in the end of the roll to protest the same from moisture.

4. As an article of manufacture, a wooden roll having a recess in the end for a gudgeou, a shaft extending from the roll, a gudgeon on the shaft in said recess, a la er of soft metal covering the exposed sur ace of the gudgeon to protect the same from moisture, said metal being forced against the projecting end of the shaft to seal the shaft fully.

5. 'As an article of manufacture, a wooden roll having a recess in the end for a .gudgeon, a shaft extending-from the roll, a gudgeon on theshaft in said recess, a layer of metal "applied in a molten state covering the entire outer surface of the gudgeon, the end of the roll having a dove-tailed circumferential recess into which the metal'extends whereby the metal is anchored in the end of the roll to protect the same from moisture.

In testimony whereof I have hereunto affixed my signature.

CARL o. mine-1s. 

